The ornamental design for a portablecamera for a monitor, as shown and described.
FIG. 1 is a front, right side perspective view of a portable camera for a monitor showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a perspective view of a portable camera for a monitor in a first configuration of use.
The broken lines indicate portions of the article that form no part of the claimed design. Additional broken lines in FIG. 8 indicate environment that forms no part of the claimed design.